Add note about ComponentIsRootWithNoSubcomponents exception to doxygen for Component::initComponentTreeTraversal(). [ci skip]
Add note about ComponentIsRootWithNoSubcomponents exception to doxygen for Component::initComponentTreeTraversal(). [ci skip]

opensim-org/opensim-core,opensim-org/opensim-core,opensim-org/opensim-core,opensim-org/opensim-core,opensim-org/opensim-core,opensim-org/opensim-core,opensim-org/opensim-core